Home / 13,771.62-18,983.03-12,627.50

Finding the Fourth Proportional to 13,771.62, 18,983.03 and 12,627.50

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Solution

The fourth proportional to 13,771.62, 18,983.03 and 12,627.50 is: 17,405.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771.62 : 18,983.03 = 12,627.50 : x
  2. Step 2: Convert to fraction form
    13,771.62/18,983.03 = 12,627.50/x
  3. Step 3: Cross multiply
    13,771.62x = 18,983.03 × 12,627.50
  4. Step 4: Simplify right side
    13,771.62x = 239,708,053.27
  5. Step 5: Solve for x
    x = 239,708,053.27/13,771.62
  6. Step 6: Final answer
    x = 17,405.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.